期末考~
可重複變數
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=BIG5">
<title>可重複變數</title>
</head>
<body>
<h2>document.write用法</h2>
<Script type ="text/javascript">
var rx1; var rx2;var rx3 ; var maxNum=9;var minNum=0;
rx1 = Math.floor( Math.random() * (maxNum - minNum + 1) ) + minNum;
rx2 = Math.floor( Math.random() * (maxNum - minNum + 1) ) + minNum;
rx3 = Math.floor( Math.random() * (maxNum - minNum + 1) ) + minNum;
document.write("亂數:"+rx1+rx2+rx3);
</Script>
</body>
</html>
不可重複變數
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=BIG5">
<title>不可重複變數</title>
</head>
<body>
<h2>document.write用法</h2>
<Script type ="text/javascript">
var rx1; var rx2;var rx3 ; var maxNum=9;var minNum=0;
rx1 = Math.floor( Math.random() * (maxNum - minNum + 1) ) + minNum;
rx2 = Math.floor( Math.random() * (maxNum - minNum + 1) ) + minNum;
while(rx2 == rx1){
rx2 = Math.floor( Math.random() * (maxNum - minNum + 1) ) + minNum;}
rx3 = Math.floor( Math.random() * (maxNum - minNum + 1) ) + minNum;
while(rx3 == rx1 && rx3 == rx1){
rx3 = Math.floor( Math.random() * (maxNum - minNum + 1) ) + minNum;}
document.write("亂數:"+rx1+rx2+rx3);
</Script>
</body>
</html>
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